Selleo/lms-core
Jul 2025 – Jun 2026
12 Months active
Languages Used
CSSHTMLJavaScriptMarkdownSQLTypeScripttsxYAML
Technical Skills
API DevelopmentAPI IntegrationAWS S3Backend DevelopmentCI/CDCSS
Gabo
PROFILE
Gabo
Over 12 months, contributed to the Selleo/lms-core repository by building and refining a robust learning management platform with a focus on security, scalability, and user experience. Delivered features such as multi-tenant authentication, permissions-based access control, analytics dashboards, and dynamic content management, while maintaining reliability through comprehensive bug fixes and automated testing. Leveraged TypeScript, NestJS, and React to implement backend APIs, frontend interfaces, and real-time notifications. Enhanced localization, asset management, and admin tooling to support global deployments and efficient content authoring. Prioritized maintainability with thorough documentation, CI/CD integration, and release automation, resulting in a stable, extensible codebase.
Overall Statistics
Feature vs Bugs
68%Features
Repository Contributions
225Total
Bugs
56
Commits
225
Features
121
Lines of code
644,581
Activity Months12
Work History
June 2026
22 Commits • 14 Features
Jun 1, 2026June 2026 was focused on stabilizing core user flows, expanding engagement capabilities, and improving content editing and admin UX across Selleo/lms-core. Delivered a suite of bug fixes that restore critical functionality (presentation previews for uploaded files and overdue course email notifications) while implementing UX and notification improvements to reduce user friction. Implemented several feature improvements to authentication, course notifications, live training, and content editing, paired with improvements to discovery, global search, and developer experience. Updated changelogs and maintained a strong emphasis on performance and reliability across multi-tenant scenarios.
22 Commits • 14 Features
Jun 1, 2026June 2026 was focused on stabilizing core user flows, expanding engagement capabilities, and improving content editing and admin UX across Selleo/lms-core. Delivered a suite of bug fixes that restore critical functionality (presentation previews for uploaded files and overdue course email notifications) while implementing UX and notification improvements to reduce user friction. Implemented several feature improvements to authentication, course notifications, live training, and content editing, paired with improvements to discovery, global search, and developer experience. Updated changelogs and maintained a strong emphasis on performance and reliability across multi-tenant scenarios.
June 2026
May 2026
23 Commits • 16 Features
May 1, 2026May 2026 (Selleo/lms-core): Delivered a focused set of features and reliability improvements that enhance learner experience, content authoring, localization, and platform stability. Key features include Activity Logs View, Learning Paths (refined and rebranded to Development Paths) with usability improvements, Asset Library, Rich Text Tables, Fill-in-the-Blank repetition, and expanded translation support for groups, announcements, and course categories. UX improvements like Autoplay removal and SCORM usability/reliability enhancements were shipped alongside stability work in file storage and uploads. Major bug fixes addressed critical user-facing workflows such as safe quiz deletion, course preview navigation, learning mode status visibility, certificate modal behavior, and trailer display. Overall impact: smoother content creation, clearer auditability, better global reach, and a more reliable learning platform, enabling faster time-to-value for learners and admins. Technologies/skills demonstrated include frontend/backend feature integration, internationalization (i18n) and localization, content management enhancements, and a disciplined, collaborative release process with co-authored commits.
May 2026
23 Commits • 16 Features
May 1, 2026May 2026 (Selleo/lms-core): Delivered a focused set of features and reliability improvements that enhance learner experience, content authoring, localization, and platform stability. Key features include Activity Logs View, Learning Paths (refined and rebranded to Development Paths) with usability improvements, Asset Library, Rich Text Tables, Fill-in-the-Blank repetition, and expanded translation support for groups, announcements, and course categories. UX improvements like Autoplay removal and SCORM usability/reliability enhancements were shipped alongside stability work in file storage and uploads. Major bug fixes addressed critical user-facing workflows such as safe quiz deletion, course preview navigation, learning mode status visibility, certificate modal behavior, and trailer display. Overall impact: smoother content creation, clearer auditability, better global reach, and a more reliable learning platform, enabling faster time-to-value for learners and admins. Technologies/skills demonstrated include frontend/backend feature integration, internationalization (i18n) and localization, content management enhancements, and a disciplined, collaborative release process with co-authored commits.
April 2026
12 Commits • 7 Features
Apr 1, 2026April 2026 highlights focus on security, reliability, and admin experience in Selleo/lms-core. Key deliveries include a permissions-based access control overhaul, a robust video upload queue with real-time status, and enhancements to admin analytics and AI Mentor UX. Pricing visibility improvements and translation/validation refinements also contributed to smoother course management. A critical bug fix restricted draft access to authors, preventing crashes when non-authors open drafts. These changes reduce security risk, improve deployment reliability, and empower admins with clearer insights and faster decisions.
12 Commits • 7 Features
Apr 1, 2026April 2026 highlights focus on security, reliability, and admin experience in Selleo/lms-core. Key deliveries include a permissions-based access control overhaul, a robust video upload queue with real-time status, and enhancements to admin analytics and AI Mentor UX. Pricing visibility improvements and translation/validation refinements also contributed to smoother course management. A critical bug fix restricted draft access to authors, preventing crashes when non-authors open drafts. These changes reduce security risk, improve deployment reliability, and empower admins with clearer insights and faster decisions.
April 2026
March 2026
17 Commits • 10 Features
Mar 1, 2026Month: 2026-03 | Repository: Selleo/lms-core Key features delivered: - Certificate customization and export enhancements: added support for a signature image on certificates and export/share certificates to LinkedIn; updated certificate repository, controller, and service to handle the new feature and sharing links. - Asset caching and versioned image serving: improved performance by caching image assets (platform logos, certificate backgrounds, login screen images) and serving versioned endpoints; updates to settings service/controller for caching behavior. - Course management: completion and access control: enabled admins and content creators to complete courses and added access control logic and schema updates to support course progress management. - Admin customizable registration form builder: provided admins with a dynamic registration form builder to create and validate custom fields during user registration. - PDF previews: inline viewer and fullscreen mode: added inline PDF previews in lesson content via a PDF viewer with support for fullscreen mode and navigation. - Release notes and changelog updates across versions: updated docs for versions 4.5.0, 4.5.1, 4.6.0, 4.6.1, 4.7.0. - Security hardening: token hashing: hashed password creation and reset tokens to improve security against token theft and replay. - API rate limiting for stability: introduced API rate limiting with a throttler guard, defined limits, and added tests to ensure stable performance under high traffic. - Email templates: dynamic company name in footers: updated email templates to dynamically display the correct company name in footers. - Localization support: German, Lithuanian, and Czech: added multilingual support with translations and updates to schemas/constants to support the languages. Major bugs fixed: - Video playback reliability: Firefox compatibility: fix video playback issues by adjusting video source handling, fullscreen integration, and error handling to improve reliability across providers. - Certificate download: ensure correct background during download (background issue fixed). Overall impact and accomplishments: - Strengthened reliability, performance, and security of the LMS core, delivering a smoother user experience with faster load times, robust course management, and safer authentication flows. Expanded business reach through multilingual support and admin tooling, and improved developer productivity via comprehensive release notes. Technologies/skills demonstrated: - Backend feature development, performance optimization through caching, security hardening (token hashing), API rate limiting, localization/internationalization, dynamic form builder, PDF viewer integration, and release/docs maintenance.
March 2026
17 Commits • 10 Features
Mar 1, 2026Month: 2026-03 | Repository: Selleo/lms-core Key features delivered: - Certificate customization and export enhancements: added support for a signature image on certificates and export/share certificates to LinkedIn; updated certificate repository, controller, and service to handle the new feature and sharing links. - Asset caching and versioned image serving: improved performance by caching image assets (platform logos, certificate backgrounds, login screen images) and serving versioned endpoints; updates to settings service/controller for caching behavior. - Course management: completion and access control: enabled admins and content creators to complete courses and added access control logic and schema updates to support course progress management. - Admin customizable registration form builder: provided admins with a dynamic registration form builder to create and validate custom fields during user registration. - PDF previews: inline viewer and fullscreen mode: added inline PDF previews in lesson content via a PDF viewer with support for fullscreen mode and navigation. - Release notes and changelog updates across versions: updated docs for versions 4.5.0, 4.5.1, 4.6.0, 4.6.1, 4.7.0. - Security hardening: token hashing: hashed password creation and reset tokens to improve security against token theft and replay. - API rate limiting for stability: introduced API rate limiting with a throttler guard, defined limits, and added tests to ensure stable performance under high traffic. - Email templates: dynamic company name in footers: updated email templates to dynamically display the correct company name in footers. - Localization support: German, Lithuanian, and Czech: added multilingual support with translations and updates to schemas/constants to support the languages. Major bugs fixed: - Video playback reliability: Firefox compatibility: fix video playback issues by adjusting video source handling, fullscreen integration, and error handling to improve reliability across providers. - Certificate download: ensure correct background during download (background issue fixed). Overall impact and accomplishments: - Strengthened reliability, performance, and security of the LMS core, delivering a smoother user experience with faster load times, robust course management, and safer authentication flows. Expanded business reach through multilingual support and admin tooling, and improved developer productivity via comprehensive release notes. Technologies/skills demonstrated: - Backend feature development, performance optimization through caching, security hardening (token hashing), API rate limiting, localization/internationalization, dynamic form builder, PDF viewer integration, and release/docs maintenance.
February 2026
11 Commits • 7 Features
Feb 1, 2026February 2026—Selleo/lms-core: Delivered stabilizing features for staging, flexible content workflow, enhanced AI Mentor UX, robust authentication in a multi-tenant context, and security improvements, while addressing a critical quiz reset bug. This month also included concise release documentation to reflect 4.2.0 and 4.3.0 updates.
11 Commits • 7 Features
Feb 1, 2026February 2026—Selleo/lms-core: Delivered stabilizing features for staging, flexible content workflow, enhanced AI Mentor UX, robust authentication in a multi-tenant context, and security improvements, while addressing a critical quiz reset bug. This month also included concise release documentation to reflect 4.2.0 and 4.3.0 updates.
February 2026
January 2026
19 Commits • 9 Features
Jan 1, 2026January 2026 (Selleo/lms-core): Focused on reliability, performance, and user-centric insights. Delivered video upload enhancements with resume support and flexible TUS-backed storage; rolled out analytics with localization and role-based access, including last-completed-lesson insights; laid groundwork for multi-tenant deployments with enriched seed data for new content types; rolled out UI/UX improvements for navigation and editor continuity; and improved release reliability and performance with a tag-handling fix and Nginx caching optimizations.
January 2026
19 Commits • 9 Features
Jan 1, 2026January 2026 (Selleo/lms-core): Focused on reliability, performance, and user-centric insights. Delivered video upload enhancements with resume support and flexible TUS-backed storage; rolled out analytics with localization and role-based access, including last-completed-lesson insights; laid groundwork for multi-tenant deployments with enriched seed data for new content types; rolled out UI/UX improvements for navigation and editor continuity; and improved release reliability and performance with a tag-handling fix and Nginx caching optimizations.
December 2025
13 Commits • 5 Features
Dec 1, 2025December 2025 focused on delivering scalable LMS improvements with strong security, better course management, and actionable analytics. Key features were rolled out across News Management, Enrollment & Progress, and User Activity, while maintenance efforts reduced UI clutter and dependencies. These efforts increase governance, multilingual reach, and data-driven decision-making for admins and instructors.
13 Commits • 5 Features
Dec 1, 2025December 2025 focused on delivering scalable LMS improvements with strong security, better course management, and actionable analytics. Key features were rolled out across News Management, Enrollment & Progress, and User Activity, while maintenance efforts reduced UI clutter and dependencies. These efforts increase governance, multilingual reach, and data-driven decision-making for admins and instructors.
December 2025
November 2025
35 Commits • 18 Features
Nov 1, 2025November 2025 monthly summary for Selleo/lms-core: Delivered substantial admin analytics capabilities, inline category management enhancements, localization improvements, and robust DevOps/local development improvements. Focused on business value: improved admin decision-making with course statistics and AI mentor insights; streamlined content management via inline category creation; enhanced localization and communications through Polish translations and polished email templates; and stabilized development and deployment pipelines to support scaling and faster delivery.
November 2025
35 Commits • 18 Features
Nov 1, 2025November 2025 monthly summary for Selleo/lms-core: Delivered substantial admin analytics capabilities, inline category management enhancements, localization improvements, and robust DevOps/local development improvements. Focused on business value: improved admin decision-making with course statistics and AI mentor insights; streamlined content management via inline category creation; enhanced localization and communications through Polish translations and polished email templates; and stabilized development and deployment pipelines to support scaling and faster delivery.
October 2025
23 Commits • 15 Features
Oct 1, 2025October 2025 (Selleo/lms-core) delivered a focused set of features to expand content formats, improved reliability through targeted bug fixes, and strengthened analytics and admin visibility. Key features delivered include: Embed Lesson Type (new embeddable lesson format), E2E Run on Merge Me label (CI/DT acceleration), Page Views collection via PostHog for engagement analytics, Tabs in course view and certificate modal (improved UX for certificates), Admin: Course statistics overview (visibility into course performance), and Student Onboarding Guides (guided onboarding). UI/UX refinements include Sidebar design updates and fonts adjustment; performance and reliability enhancements cover Iframe load time extension and token expiry policy updates. Major infrastructure and stability fixes address: SSO redirect uses current URL on login, E2E tests fixes, Learn deploy workflow environment variables, Google OAuth on all instances and editable Slack envs, and Multer module installation to properly serve apps. Overall impact: faster, more reliable deployments; improved content delivery formats; better user onboarding and admin insights; data-driven engagement tracking. Technologies/skills demonstrated: PostHog analytics integration, E2E test automation and maintenance, CI/CD workflow stabilization, database/migration handling (drizzle), environment configuration, and OAuth configuration.
23 Commits • 15 Features
Oct 1, 2025October 2025 (Selleo/lms-core) delivered a focused set of features to expand content formats, improved reliability through targeted bug fixes, and strengthened analytics and admin visibility. Key features delivered include: Embed Lesson Type (new embeddable lesson format), E2E Run on Merge Me label (CI/DT acceleration), Page Views collection via PostHog for engagement analytics, Tabs in course view and certificate modal (improved UX for certificates), Admin: Course statistics overview (visibility into course performance), and Student Onboarding Guides (guided onboarding). UI/UX refinements include Sidebar design updates and fonts adjustment; performance and reliability enhancements cover Iframe load time extension and token expiry policy updates. Major infrastructure and stability fixes address: SSO redirect uses current URL on login, E2E tests fixes, Learn deploy workflow environment variables, Google OAuth on all instances and editable Slack envs, and Multer module installation to properly serve apps. Overall impact: faster, more reliable deployments; improved content delivery formats; better user onboarding and admin insights; data-driven engagement tracking. Technologies/skills demonstrated: PostHog analytics integration, E2E test automation and maintenance, CI/CD workflow stabilization, database/migration handling (drizzle), environment configuration, and OAuth configuration.
October 2025
September 2025
33 Commits • 12 Features
Sep 1, 2025September 2025 performance summary for Selleo/lms-core: delivered security, reliability, and usability improvements with MFA, automated changelog/version management, admin notifications, announcements, and UX enhancements. Notable commits include MFA (SCS-460) implementation, changelog automation, admin notifications for finished courses, announcements, and rich-text enhancements, plus Slack authentication and Excel-based user import. A broad set of bug fixes stabilized authentication flows, deployment versioning, storage config, and course-related workflows, reducing risk and enabling faster releases.
September 2025
33 Commits • 12 Features
Sep 1, 2025September 2025 performance summary for Selleo/lms-core: delivered security, reliability, and usability improvements with MFA, automated changelog/version management, admin notifications, announcements, and UX enhancements. Notable commits include MFA (SCS-460) implementation, changelog automation, admin notifications for finished courses, announcements, and rich-text enhancements, plus Slack authentication and Excel-based user import. A broad set of bug fixes stabilized authentication flows, deployment versioning, storage config, and course-related workflows, reducing risk and enabling faster releases.
August 2025
6 Commits • 4 Features
Aug 1, 2025August 2025 monthly summary for Selleo/lms-core focusing on business value, security, UX, and test reliability. Key platform improvements include global SSO enforcement, navigation and admin UX refinements, reliable production seeding for new instances, and stabilized end-to-end tests, enabling faster onboarding, consistent user flows, and more predictable deployments.
6 Commits • 4 Features
Aug 1, 2025August 2025 monthly summary for Selleo/lms-core focusing on business value, security, UX, and test reliability. Key platform improvements include global SSO enforcement, navigation and admin UX refinements, reliable production seeding for new instances, and stabilized end-to-end tests, enabling faster onboarding, consistent user flows, and more predictable deployments.
August 2025
July 2025
11 Commits • 4 Features
Jul 1, 2025July 2025 monthly summary for Selleo/lms-core focused on identity, UI consistency, user profiles, and authentication strategies, with a reliability improvement in enrollment processing. Delivered concrete features with migrations, tests, and docs updates; aligned with Figma design for profiles; standardized UI sizing to reduce visual inconsistencies; added Google and Microsoft SSO support with unified handling; and fixed enrollment logic to ensure only non-enrolled students are processed, improving admin enrollment reliability and reporting accuracy.
July 2025
11 Commits • 4 Features
Jul 1, 2025July 2025 monthly summary for Selleo/lms-core focused on identity, UI consistency, user profiles, and authentication strategies, with a reliability improvement in enrollment processing. Delivered concrete features with migrations, tests, and docs updates; aligned with Figma design for profiles; standardized UI sizing to reduce visual inconsistencies; added Google and Microsoft SSO support with unified handling; and fixed enrollment logic to ensure only non-enrolled students are processed, improving admin enrollment reliability and reporting accuracy.
Activity
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Quality Metrics
Correctness92.0%
Maintainability84.8%
Architecture85.2%
Performance82.4%
AI Usage29.6%
Skills & Technologies
Programming Languages
CSSDockerfileGoHTMLJSONJavaScriptMakefileMarkdownNginxSQL
Technical Skills
API DesignAPI DevelopmentAPI IntegrationAPI TestingAPI developmentAPI managementAWSAWS S3Analytics IntegrationAuthenticationAutomated Changelog GenerationBackend DevelopmentBuild AutomationCI/CDCSS
Repositories Contributed To
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